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enhanced awk to detected divide-by-zero error when folding constans

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hyung-hwan 2015-11-20 03:12:07 +00:00
parent 028646bb54
commit 1d99026dbc
2 changed files with 21 additions and 3 deletions
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17
qse/lib/awk/parse.c
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@ -3364,6 +3364,12 @@ static int fold_constants_for_binop (
break; break;
case QSE_AWK_BINOP_DIV: case QSE_AWK_BINOP_DIV:
if (((qse_awk_nde_int_t*)right)->val == 0)
{
qse_awk_seterrnum (awk, QSE_AWK_EDIVBY0, QSE_NULL);
return QSE_NULL;
}
if (INT_BINOP_INT(left,%,right)) if (INT_BINOP_INT(left,%,right))
{ {
folded->r = (qse_awk_flt_t)((qse_awk_nde_int_t*)left)->val / folded->r = (qse_awk_flt_t)((qse_awk_nde_int_t*)left)->val /
@ -3371,8 +3377,17 @@ static int fold_constants_for_binop (
fold = QSE_AWK_NDE_FLT; fold = QSE_AWK_NDE_FLT;
break; break;
} }
/* fall through here */
folded->l = INT_BINOP_INT(left,/,right);
break;
case QSE_AWK_BINOP_IDIV: case QSE_AWK_BINOP_IDIV:
if (((qse_awk_nde_int_t*)right)->val == 0)
{
qse_awk_seterrnum (awk, QSE_AWK_EDIVBY0, QSE_NULL);
return QSE_NULL;
}
folded->l = INT_BINOP_INT(left,/,right); folded->l = INT_BINOP_INT(left,/,right);
break; break;

7
qse/lib/http/httpd-std.c
View File

@ -1174,11 +1174,14 @@ static int server_accept (
* the same addresses. however, the port number may be different * the same addresses. however, the port number may be different
* as a typical TPROXY rule is set to change the port number. * as a typical TPROXY rule is set to change the port number.
* However, this check is fragile if the server port number is * However, this check is fragile if the server port number is
* set to 0. */ * set to 0.
*
* Take note that if the TPROXY rule doesn't change the port
* number the above assumption gets wrong. so it won't be able
* to handle such a TPROXYed packet without port transformation. */
client->status |= QSE_HTTPD_CLIENT_INTERCEPTED; client->status |= QSE_HTTPD_CLIENT_INTERCEPTED;
} }
#if 0 #if 0
/* TODO: how to set intercepted when TPROXY is used? */
else if ((client->initial_ifindex = resolve_ifindex (fd, client->local_addr)) <= -1) else if ((client->initial_ifindex = resolve_ifindex (fd, client->local_addr)) <= -1)
{ {
/* the local_address is not one of a local address. /* the local_address is not one of a local address.